// reference: http://www.cplusplus.com/reference/vector/vector/data/
// vector::data
#include <iostream>
#include <vector>
int main ()
{
std::vector<int> myvector (5);
int* p = myvector.data();
*p = 10;
++p;
*p = 20;
p[2] = 100;
std::cout << "myvector contains:";
for (unsigned i=0; i<myvector.size(); ++i)
std::cout << ' ' << myvector[i];
std::cout << '\n';
return 0;
}
/*
Output:
myvector contains: 10 20 0 100 0
*/
强烈建议大家写完代码给出输出结果,有些博客就一些代码,什么结果或者能不能跑都不管了。